From patchwork Tue Apr 16 02:00:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 13631080 Received: from dggsgout11.his.huawei.com (unknown [45.249.212.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 94899107A6 for ; Tue, 16 Apr 2024 02:09:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713233378; cv=none; b=LlLGa/ZY/2Ytat3KzOlsYjuCv/qFkLPyjYljX8zkvdJtzq6ybM76zDFlewDDqvDoGCIqnK32tXKAv0c4gn2uRREfE0UFiBHrhUloH8zSbbEKpwhPXtzjX3BJ3Al7ujfxo2DiAReE4J6MWz1l8gW9J+Yny7bosK2WMJgqv0CZiU0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713233378; c=relaxed/simple; bh=ZCcOZ0EfdxN6M+eQ+PeubeyX5Yxm8vec6Pj6kVsb1bs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Xoe6pW0Q1fb9Ql5j7K3fGPM1297z8+rkL15u481TcajYSuksTx+jI7wiQHVuFg4JnlY/QK4dNP1KsZXq5M59+1sKHQXTzI4p7MXWM/flLxV/mIcvyiXZE4HhmNq2aK1uBmbwcAMO/ayAIQvTNCZ0k22GWvgLuIjGWwLJI2vaflU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.93.142]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4VJSCQ5LXbz4f3lX6 for ; Tue, 16 Apr 2024 10:09:22 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.112]) by mail.maildlp.com (Postfix) with ESMTP id 55FC51A016E for ; Tue, 16 Apr 2024 10:09:27 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP1 (Coremail) with SMTP id cCh0CgAX5g7U3R1mMNVnKA--.11112S6; Tue, 16 Apr 2024 10:09:27 +0800 (CST) From: Yu Kuai To: linux-block@vger.kernel.org, saranyamohan@google.com, axboe@kernel.dk, tj@kernel.org Cc: yukuai3@huawei.com, yukuai1@huaweicloud.com, yangerkun@huawei.com Subject: [PATCH blktests 2/5] tests/throtl: add a new test 002 Date: Tue, 16 Apr 2024 10:00:39 +0800 Message-Id: <20240416020042.509291-3-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240416020042.509291-1-yukuai1@huaweicloud.com> References: <20240416020042.509291-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: cCh0CgAX5g7U3R1mMNVnKA--.11112S6 X-Coremail-Antispam: 1UD129KBjvJXoW7Kw4DZw47Gw4kCr15Cw4kZwb_yoW8KF1xpF WUGF4rKF48WFnrtFy3t3Wj9ayrZws5ArW7A343Xr1FvFnFv3y7KF1Iyr1IyFWfGr9rWr1r Za1vqFZ5K3WUX37anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUU9m14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_Jryl82xGYIkIc2 x26xkF7I0E14v26r4j6ryUM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS 0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2 IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0 Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCF04k20xvY0x0EwIxGrwCFx2 IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v2 6r106r1rMI8E67AF67kF1VAFwI0_JF0_Jw1lIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67 AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IY s7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr 0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUc6pPUUUUU= X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ From: Yu Kuai Test iops limit over IO split, regression tests for: commit 9f5ede3c01f9 ("block: throttle split bio in case of iops limit") Signed-off-by: Yu Kuai --- tests/throtl/002 | 81 ++++++++++++++++++++++++++++++++++++++++++++ tests/throtl/002.out | 4 +++ 2 files changed, 85 insertions(+) create mode 100755 tests/throtl/002 create mode 100644 tests/throtl/002.out diff --git a/tests/throtl/002 b/tests/throtl/002 new file mode 100755 index 0000000..e0df4b8 --- /dev/null +++ b/tests/throtl/002 @@ -0,0 +1,81 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-3.0+ +# Copyright (C) 2024 Yu Kuai +# +# Test iops limit work correctly for big IO of blk-throttle, regression test +# for commit 9f5ede3c01f9 ("block: throttle split bio in case of iops limit") + +. tests/throtl/rc + +DESCRIPTION="iops limit over IO split" +QUICK=1 + +CG=/sys/fs/cgroup +TEST_DIR=$CG/blktests_throtl +devname=nullb0 +dev="" + +set_up_test() { + if ! _init_null_blk max_sectors=8; then + return 1; + fi + + dev=$(cat /sys/block/$devname/dev) + echo +io > $CG/cgroup.subtree_control + mkdir $TEST_DIR + + return 0; +} + +clean_up_test() { + rmdir $TEST_DIR + echo -io > $CG/cgroup.subtree_control + _exit_null_blk +} + +config_throtl() { + echo "$dev $*" > $TEST_DIR/io.max +} + +remove_config() { + echo "$dev rbps=max wbps=max riops=max wiops=max" > $TEST_DIR/io.max +} + +test_io() { + config_throtl "$1" + + { + sleep 0.1 + start_time=$(date +%s.%N) + + if [ "$2" == "read" ]; then + dd if=/dev/$devname of=/dev/null bs=1M count=1 iflag=direct status=none + elif [ "$2" == "write" ]; then + dd of=/dev/$devname if=/dev/zero bs=1M count=1 oflag=direct status=none + fi + + end_time=$(date +%s.%N) + elapsed=$(echo "$end_time - $start_time" | bc) + printf "%.0f\n" "$elapsed" + } & + + pid=$! + echo $! > $TEST_DIR/cgroup.procs + wait $pid + + remove_config +} + +test() { + echo "Running ${TEST_NAME}" + + if ! set_up_test; then + return 1; + fi + + test_io wiops=256 write + test_io riops=256 read + + clean_up_test + echo "Test complete" +} diff --git a/tests/throtl/002.out b/tests/throtl/002.out new file mode 100644 index 0000000..7e1ae85 --- /dev/null +++ b/tests/throtl/002.out @@ -0,0 +1,4 @@ +Running throtl/002 +1 +1 +Test complete